It then receives Quimby Creek and passes Denny, one of several small communities originally established by Gold Rush miners.

It turns south at the confluence with China Creek, then receives Big Creek at Hoboken, from where it flows southwest to join the Trinity River about 2.5 miles (4.0 km) north of Burnt Ranch.

The New River drains about 225 square miles (580 km2) of rugged mountains and forests; almost 70 percent of the watershed is in the Trinity Alps Wilderness.

The Chimariko lived along its lower reaches until they were forced from their homes by White prospectors and absorbed by the Tsnungwe, including the tł'oh-mitah-xwe.

[3] With the exception of a few small settlements along the New River, most of the watershed is remote, isolated backcountry that is seldom visited.